* {
    /* 不清除盒子的margin，默认还有8px */
    box-sizing: border-box
}

body {
    font-family: Verdana, sans-serif;
}

.mySlides {
    /* 先让他们都隐藏起来 */
    display: none
}


/* 幻灯片容器 */

.slideshow-container {
    max-width: 1000px;
    position: relative;
    margin: auto;
}


/* 下一张 & 上一张 按钮 */

.prev,
.next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    /* 为了使按钮居中 */
    margin-top: -22px;
    padding: 16px;
    color: white;
    font-weight: bold;
    font-size: 18px;
    transition: 0.6s ease;
    border-radius: 0 3px 3px 0;
}


/* 定位 "下一张" 按钮靠右 */

.next {
    right: 0;
    border-radius: 3px 0 0 3px;
}

.prev:hover,
.next:hover {
    background-color: rgba(0, 0, 0, 0.8);
}


/* 标题设置属性 */

.text {
    color: #f2f2f2;
    font-size: 15px;
    padding: 8px 12px;
    position: absolute;
    bottom: 8px;
    width: 100%;
    text-align: center;
}


/* 数字 (1/3 等) */

.numbertext {
    color: #f2f2f2;
    font-size: 12px;
    padding: 8px 12px;
    position: absolute;
    top: 0;
}


/* 底部小原点 */

.dot {
    cursor: pointer;
    height: 13px;
    width: 13px;
    margin: 0 2px;
    background-color: #bbb;
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.6s ease;
}

.active,
.dot:hover {
    background-color: #717171;
}


/* 淡出动画 */

.fade {
    -webkit-animation-name: fade;
    -webkit-animation-duration: 1s;
    animation-name: fade;
    animation-duration: 1s;
}

@-webkit-keyframes fade {
    from {
        opacity: .6
    }
    to {
        opacity: 1
    }
}

@keyframes fade {
    from {
        opacity: .6
    }
    to {
        opacity: 1
    }
}